int ldr1 = 0;//analog pin to which LDR is connected
int ldr2 = 1;
int ldr1_value = 0;        //variable to store LDR values
int ldr2_value = 0;  
void setup()
{
  Serial.begin(9600);   //start te serial monitor
}

void loop()
{
  ldr1_value = analogRead(ldr1);          //reads the LDR values
  ldr2_value = analogRead(ldr2);
  Serial.print(ldr1_value);
  Serial.print("-");
  Serial.println(ldr2_value);
  //prints the LDR values to serial monitor
  delay(250);                  //wait
}
